DE1646660A1 - Method for sealing objects, especially channels, pipelines, and also prefabricated parts, as well as gaps in the floor, pores and cavities, for soil consolidation, for making the soil waterproof - Google Patents

Description

Method for sealing objects, especially ven canals, pipelines, furthermore, of prefabricated parts, as well as gaps in the floor, pores and cavities, for soil consolidation, for waterproofing the soil The invention provides a method. for sealing of objects, especially of channels, pipelines, furthermore of prefabricated parts, as well as of @ rdenspaltent pores and cavities, for soil consolidation, for making water-proofing of the BO because it is known that the. as prefabricated = BQtonrohrbn built and to be built underground channels and nalnetze in the majority with regard to Wassord: .ahtlgke: .t = gaeiggLet. are, for the T611 deowa-gdn, because the quality of the pipes is not suitable due to the used Purtig = goteohnologie , partly because the Rehrsteßetelleas Rehr connection points are not professionally made watertight when installing and laying the pipes, or the The sewer becomes damaged over time .. The defects of the Wessdräiehigkalt- miaR3.sU_ J .. the majority of cases in the pipelines built as well, banals at the pipe joints, pipe connection points, while in the case of the locally manufactured pipelines that are not professionally manufactured Pounding noticeable, Several attempts and methods have become known to produce pipes with suitable watertightness, but these do not bring the desired success however, generally have the disadvantage that they only seal the surface, and so there are as a result Exfoliation, wear and tear. the coating or the coating that is interrupted as a result of the breaking off of the concrete does not have perfect, permanent watertightness. Also have. These solutions have the disadvantage that the coatings are based on the degradation effect of the microorganisms living in the wastewater and in the groundwater. It is known that various kinds of experiments have been carried out to repair the pipelines that have already been built. So attempts were z. B. A suspension of E,% ntonite and hydraulic binders were carried out, but these were unsatisfactory because only the pores were sealed and the concentrated imperfections or the defects in the pipe joints were not guaranteed. In the coarser Siokerganges, butt joints, these substances cannot harden or harden, and the flowing groundwater or wastewater washes them away, which in place - not from q @ r @ efr @ rtigRotrwn -, g & built K = ild Concrete or reinforced concrete are generally manufactured with large transverse sections and they can be climbed or walked on on the inside. The waterproofing of such channels is increased by a waterproof cement mortar plaster applied from the inside up to shoulder height, usually consisting of three layers. The expensive mortar plaster does not always result in one Adequate watertightness, This Unist = d -caused an unfavorable effect especially with, with full cross-section, or with almost full cross-section used or in canals that are very sensitive to Darchnässuztg (e.g. loess) Concrete channels are mostly done by internal inspection and manual repairs by plastering the cracks or the seepage t cement mortar.

The use of water glass has also been tried, due to its property that it contains acidic active ingredients, for example with 00? or with some metal salts z.8. CaolZ treats disintegrates, and silica gel separates from it . This property is in some buildings - .. B. for the bilication of. Wall surfaces used. On the basis of this property is also based on the proposed method for soil consolidation, after which water glass is pressed into the soil, and then silicic acid gel is excreted from the water glass by supplying 002. With these processes, the elimination of the silica gel from the water glass takes place practically in seconds. However, they have Clen nights il, DAFL, next to the outgoing Eieseisäuregel highly soluble in water, depending on the verwondetEU Vixltofisn side Products- en, 'tsteh.ezi.'"Ö;b3.Xldet'rsxi °, Nä.umcurbonat (Na 2 003) at # wendür @: g '@''won z. B .. '`@ ^'t,`; I y. x tt.ichlerid (Na01) at Anwez @ äun`; ön SdI: zäur 'ddert @ ion Kalztutxhlerid. the early ti: g: .g'3.tist 'have an extremely detrimental effect on the watertightness and strength of the precipitated silica gel.

It has been found on our part that a better and more complete seal, water resistance than with the known channel sealing method is achieved if water glass or water glass-containing agent is expediently under pressure z.8 in the channel to be sealed or in the channel section. of 0.1 - 1.2 atmospheric pressure is conveyed and the leaks are injected, whereby the water glass or water glass-containing agent conveyed to the point to be sealed off is exposed to the action of fluoride gas or a mixture of such fluorides or fluoride gas genisehen. ELi fluoride gas is e.g. B. the water atomic fluoride (EF), the silicon tetrafluoride (SC.), The hydrogen silicon fluoride (H2S'F6), Through these fluorides a double effect is achieved in the water glass. First and foremost, silica gels from the NaOH-containing water glass look through fluoride treatment, which also has a sealing effect in itself, and which is also increased by the silica gel that separates from-S1F4 and H2Sig6 Ze, @ ituns ti? see NaF üzw. NaZS3.F6 from the HF and H, SiFS through the action of NaOH in the water glass, both of which have a catalytic effect over time in the sense that the precipitation of the trickle acid gel is more complete. The beneficial effect of fluorides is also increased by the fact that poorly soluble NaP or Na 2SiF6 is formed as a by-product in the water, which practically builds into the precipitated silica as insoluble silicate. Therefore, both by-products contribute to the good water-tightness of the discharged product, and they increase its strength. Due to the effect of fluoride gas also the Widerstandf @ .higkeit against corrosion of the glass-containing water glass or water "means treated concrete and Stahlbbtonkanäle and objects advantageously increased. The final product of verwirkliehten reaction is in fact a completely acid-resistant, resistant to attack enabled salt solutions, in Silicate insoluble in organic solvents. According to the invention, it is advantageous that the water glass or the water glass-containing agent is formed essentially from hydrogenated silicon fluoride from the use of sodium: (H2Sif6) -, hydrogen fluoride` (HF) arid silicon tetrafluoride (SiF4) is exposed to existing Gaegenisch.

Is öeraäll wertuhten the invention, such as the well of #me experiments carried out under BetriebeverNUtnio-0 have the bewiiten) are ni4ht11 Zout the Undlohtigkeiten the channel praktis.-h vollkormen nb-Edichtet but also solidified calibration of the channel bottom in unGeberde Strakem Dimensions by the effect of the. Through the leaks in the sewer, cracked silica, pressed into the ground, was expelled. This achieves such a high degree of sealing and watertightness that the previously known methods could not be achieved. The contiguous consolidation of the surrounding soil, which takes place without seepage passages, also ensures a fully coiled bed length of the sewer and excludes the possibility of further movements A state of equilibrium corresponding to the temperature conditions is reached, and the mutual effect on the water glass is favorably influenced. A gas formed by the interaction of sodium silicofluoride (Na2SiF6) and sulfuric acid is expediently used as a mixture of fluoride gases. The practically dry gas mixture that forms in this way contains about 40-50 percent by volume of H2W6 at normal temperature in addition to HF and SiF4.

A solid one alias and / or organic Biiidemittbl, or the mixture of fillers containing water glass suspension used. The amount of filler depends on the given conditions repugnant, in general 40-60 weight percent. As a filler is advantageous Fly ash tangled,.

For the purposes of the invention, it is also possible to proceed in such a way that a stimulant is given to the waeserglae to be used, for the purpose of this makes hardening of the water glass felt. Its importance lies in the fact that in such away lying example Bodensickergängen where the water glass is penetrated due to the used pressure, although, however, for some reason, for example due to clogging, riding the fluoride gas can not come into contact, by the action of of the stimulating substance, silica gel or silica gel elimination takes place in stages, and the inner, more distant floor passages and cavities are sealed.

One can also proceed in such a way that the operations are carried out together, and thereby the inhibiting effect of the blockage caused by the silica gel excreting as a result of the action of the fluoride gas on the water glass in the deeper floor passages is eliminated. According to the invention, the water glass and / or Repeatedly and / or alternate the water glass-containing agent. seldom used and exposed to the action of the fluoride gas.

In the case of civil engineering structures, expedient to lower the level or to remove the leakage of canals, pipelines, the construction to be sealed or the section, in the case of canals, is expediently a section between two manholes, closed with a sealing body, with water glass-containing agent, expediently under its own hydrostatic Diuck is filled up, the water glass or the agent containing water glass is homogenized as required , and the part to be repaired is soaked or filled, then it is removed from the construction, then fluoride gas is passed into the closed section, which until early =, 1 The water glass or agent containing water glass which has penetrated into the leaks remains.

To close the construction section to be sealed, two ^ kmäflig an at least partially inflatable closure body according to the invention used.

To lower or eliminate leaks in tunnels, Channels, objects, a mass or hollow body and / or an inflatable space occupant Body arranged, and after closing the water glass or the water glass containing Agent and the fluoride gas in the space-between the space-restricting body and the inner wall of the construction or the object.

For lowering or eliminating the leakage of partial areas of civil engineering structures will be those on the wall of the structure or object detected leak according to the invention with a, larger than the area perimeter the leakage, space-restricting body open in the direction of the wall surface sealed, and the water glass or the water glass-containing agent and the fluoride gas are directed into the space restricted in this way, to increase the watertightness of prefabricated parts is the water glass or the water glass-containing agent according to Invention in the prefabricated part by means of partially acting or on the entire surface acting pressure or by negative pressure or by the action of an electric Field, for sealing BA ;; - n gaps as well as for soil consolidation and The water glass or the water glass-containing one becomes the asse.rdicb.tmfl.chen of the soil Agents in the ground by injecting or through the leaks in the Laid the ground. Construction, with their simultaneous sealing or by the Effect of an electric field brought.

In the following, in connection with the way it is carried out, the invention is based as an example on the A @ 'essex ° din of faulty, covered canals, pipelines and the given conditions that lie underground (in the baths ... or in another medium) to the simultaneous consolidation of the surrounding soil or means, related to the sealing of crevices, cavities, where Figs. 1 and 2 show the treatment of a sewer in a basic arrangement, Fig. 3 the basic arrangement of another embodiment according to the treatment Fig. 4 shows the basic principle of the treatment of an accessible, accessible tunnel in section, Fig. 5 shows the treatment of a part of an equally walkable object in section, Fig. 6 shows the vertical longitudinal section of Fig. 5 shows, According to Fig. 1 and 2, a route lying between two or more entrance seams is like this treated that it is closed at the shafts with lock bodies. These can be the commonly used Vursehlußkörper 1 or at least partially inflatable balloons 2. The drained canal section 3 is filled through the shaft 4 with water glass or water-glass-containing agent. The pressure necessary for injecting into the leaks is obtained from the pressure height achieved in the shaft, by filling it up.

In a given case, the substance to be injected is also let run through of the mixing body 5 (e.g. mixing brush) homogenized. After the injection has taken place becomes the water glass or the agent containing water glass in the sewer through, the shaft 4 removed. For transport, filling into the sewer and for lifting from there to. F_p-n of the substance necessary for injection: Ies is e.g., sewage suction truck 6 used Dant.oh the cleaning body e.g. drain cleaning brush is used instead of the Ä isclikörpers 5 brought into the canal, and by letting it run, it becomes the inside surface of the canal removed any backward looking material. Then will those with the appropriate passage; and connection provided closure body 8 according to of Fig. 2, and in the channel section 3 is fluoride gas through the ear 9 pressed, the tube 10 is used for venting or to accommodate the gas manometer 11. The closure body is inflated through line 12. After the @ @ -, @ -; tables Experience corresponds: nd long-term gas treatment under pressure the closure bodies are removed as necessary.

The shortcomings of the sewer to be repaired and the local ones Dependent on the circumstances ker = n dzti 4Yes: 1) Lrglas tuid / or the waaserglashhaltige Means repeated several times in given Fall with land r alternates lad _ vez @ aenü @@ - @ erdeu, and $ s is given to the action of fluoride gas by the Exposed to circumstances.

In the implementation shown in Fig. 3, an inflatable space-limiting body 13 is placed in the canal for the purpose of economical use of the material required to carry out the repair! in which the spacer ribs 14 ensure that the inner surface of the pipe is kept free. In the process, the balloon pressure is weekly higher than the injection pressure. Leittang 15 is used to alaaen the B & Uono.

The closure body 16 is expediently used to close the upper one Part of manholes and other objects.

In Fig. 4 and 5 is the sketch of one of those larger, ascending, accessible canals, various objects: basins, containers, tunnels suitable way of performing to see where the filling of the full profile or the Rarmes with grout or gas is no longer economical or cumbersome.

In the tunnel 17 is a space-limiting hollow body or mass body, smaller than the profile, then the water glass or the water glass containing one becomes Agent and the fluoride organ after the desired conclusion in the space 19 between, see the space-restricting body 18 and the inner wall of the object through the filling pipe 20 headed. Line 21 is used for venting.

In a trap shown in Fig. 5, the leakage occurring on the wall of the object, or the one with i @ 9u8 @. @ En @ ienr Boda @, egaZten., Hohlr @@, me dlahoh .. den. @ - .. .. the area laid and in the Rte, g to the area open rdufabe sahrän @ ends body 22 z. B. Eliminated by a box in this way, sat Vaaeuergtas octgg waaaers; Laahaltigeß means or fluoride gas after a suitable conclusion in do = s vt> m reuen. restricting body 22 is directed to limited space. When carrying out the method, two space-restricting bodies 22 with the support icon 23 are expediently turned forward. In the case of a continuous process, the line 24 or 25 is used to fill water glass or agent containing water glass or fluoride gas, while the lines 26 and 2? serve for ventilation.

One embodiment of the invention is formed by the method for increasing the watertightness of civil engineering elements or prefabricated parts (for example of sewer pipes, pipe fittings, masonry blocks) expediently during manufacture. The water glass or the water glass-containing medium is passed into the finished part through the partially used on the surface pressure or under pressure, for example in Druckkensel, it is by reduction of the pressure or lower pressure contacted with fluoride gas into contact The feed een Wasserglates or Water glass-based agent can also be through. the effect of an electric field, for example, by way of electrophoresis.

A further embodiment of the method according to the invention is the method for sealing soil pores or soil gaps, furthermore for soil consolidation and for water-expanding the soil. The crevices in the floor and cavities are explained in the expanded interpretation -v @ rdtandsn. The water gas or the detergent containing glass is injected according to the process in the well-known 'Uyeise'. or by the action of an electric field in the soil to the desired location and exposed to the action of fluoride gas.

The consolidation and waterproofing of the soil can be carried out at the same time proceed by sealing the constructions laid in the ground, e.g. ducts or RohrleiütusT »gen are effected when the water glass odzr'das water glass containing Means, the fluoride gas continues through the leaks in the construction Soil are pressed: As already described, not only line sealing is used high degree and the fastening of the structure, but also the consolidation of the surrounding soil.

In the method according to the invention this is expensive and cumbersome Opening, remodeling of the faulty ducts, pipelines not necessary as the repair also in the case of canals that cannot be climbed or cannot be walked on.

and objects through the existing manholes, test shafts, etc. indicated. The considerable costs and disruptive circumstances arising from breaking up and laying the road surface are avoided, and the costs of transport and maintenance in continuous operation are also significantly lower, since the repair according to the method according to the invention takes a significantly shorter time can be done :, as the known repair methods. In addition, the procedure can also be used for repairs -vo, n. beaoe=.dzgt@n objects and to increase de - ^ vassextUehtigkeit of prefabricated parts during production, to seal the verach3.odenaten Bodenopalte, for Bodenverfestigmg, 7u. sxases @ liahtr..aahan Jes ßoa @ xia.

Claims (4)

PATENT CLAIMS 1. Method for sealing vou soldering, h @ eondp4 of channels, pipelines, furthermore of prefabricated parts, as well as of floor gaps, pores and cavities, ztnc soil consolidation and. To @tasseediahtmaaJian of the soil with water glass or with water glass-containing agent, thereby marked h -net that the water glass or water glass-containing agent conveyed to the point to be sealed and made waterproof is exposed to the active agent of fluoride gas or of a mixture of such fluorides (fluoride gas mixture). 2. Procedure according to claim 1, characterized g e k e n n -z e i c h n e t,. that the water glass or Water-glass-containing agents have the effect of one in the reaction of sodium uicofluoride (Na2S1F6) and from sulfuric acid (H2004) formed, essentially from hydrogen partial fluoride (% S @ F #), water - &'&; 6 (HF) and silicon tetrafluoride (S17 #) is exposed. 3. The method according to claim 1 or 2, characterized in that g e -k e n n z e i c h n e t that a solid filler is useful as a washerglass-containing agent Water, glass suspension containing fly ash is used. 4. The method according to any one of claims 1 to 3, characterized in that an exciter, e.g. basic fly ash, is added to the water glass or water glass-containing medium before it is used nz shows that the water glass and / or the washer-glass-containing agent are used repeatedly and / or alternately with one another and the Wlxkuntr »wen Vluoriggaa a @ agsrt @ t., 6. Method according to any one of claims 1 - 5 for lowering or B4; = g of the unsaturation of laid civil engineering structures, two-way of canals, pipelines, dd durch geken nzeic hn et, @ that the construction to be sealed, route is appropriate for sewers, the route between two shafts, closed with sealing bodies, with water glass or water glass-like means, expediently under the own hydrostatic Pressure is replenished, the water glass or the water glass-containing agent is homogenized as required, and de The part to be repaired is soaked or filled, after which it is removed from the structure, then fluoride gas is passed into the closed section, which remains contained until the water glass or water glass-containing agent that has penetrated the leaks hardens. Method according to claim 6, characterized in that at least partly inflatable closure bodies are used to close off the construction section to be sealed. B. The method according to any one of claims 1-5 for lowering or eliminating the leakage of civil engineering structures, for example of channels, objects z. of tunnels, thereby marked E nnzeichne t., -that mass, or hollow, cell body and / or inflatable space-limiting body is arranged in the stretch to be sealed, and the water glass or the water glass-containing agent, furthermore the fluoride gas gnaws the Absähl! # -. Z'-in the space between the ra @ uubacchxe ## the body and the Konatruktsan. odax d..r Ii'ut.eavand de & Objwktas is headed. . G. Method according to any of claims 1-5 for lowering or eliminating the leakage of civil engineering structures, objects, for example channels, tunnels, characterized in that those on the wall. the construction or the object occurring leakage is closed with a larger than its surface circumference "in the direction of the wall surface open space-delimiting body, and the water glass or the water-glass-containing agent and the fluoride gas is passed into the space limited in this way, 10. Method by any of claims 1 - @ 5 to increase the watertightness of Tiegbau- and prefabricated building parts, characterized gekennzeiohnet 9 that the water glass or the water glass-containing agent in it finished part with partially or on the whole, surface acting pressure or negative pressure or by the action of an electrical] 'bldes e @ inge @@ .: 'tet is, 11. The method according to any one of claims 1 - 5 for sealing floor gaps, further for Bodänverto4ti.-gung and for waterproofing the floor, characterized in that the water glass or the water glass-containing agent in the soil either in the known manner by injecting or by the Un is passed densities of the geleg- in the floor construction th through their simultaneous sealing, or by the action of an electric field,